Question

Which statement is incorrect? Group of answer choices All of the following are correct Muscle cells are surrounded by a branching network of transverse tubules. Each muscle fiber is densely packed with myofibrils composed of contractile and elasted proteins. Muscle cells are called muscle fibers. The cell membrane of a muscle fiber is the sarcolemma

Answer 1

- All of the following are correct

- Muscle cells are surrounded by a branching network of transverse tubules.

Step-by-step explanation:

Muscle cells are composed of myofibrils, which are the fundamental and functional parts of a muscle cell. Myofibrils are the ones that are surrounded by a branching network of transverse tubules. These transverse tubules are extensions of the sarcolemma or the muscle cell's membrane. Their distribution and connection to myofibrils allow for the passage of Calcium ions needed for contraction.